Roof cast-iron soil-pipe connection



(No Model.)

Patented Feb. 21, 1888.

Suus/14450@ x. vertus. Pham-umugupw. wammgum D. c.

Unirse Smarts Partnr Ottica JOHN T. FITZPATRICK, OF IVORCESTER MASSACHUSETTS.

ROOF CAST-IRON SOIL-PUDE CONNECTION.

SPECIFICATION forming part of Letters Patent No. 378,360, dated Ee'nary Application filed October 28, 1587. Serial No. 253,583. @lo model.)

To @ZZ when?, t may concern:

Be it known that I, JOI-IN T. FITZPl-ITRICK, a citizen ol' the-United States,residing at forces ter, in the county of Vorcester and State of Massachusetts, have invented certain new and useful Improvements in Roof Cast Iron Soil-Pipe Connections; and I do hereby declare that the i'ollowing is a full, clear, and exact description thereof, which, in connection with the drawing making a part of this specification, will enable others skilled in the art to which my invention belongs to make and use the same.

My invention relates to soilpipe connections, and more particularly to the cast-iron soil-pipe connection which extends through the roof of a building for the purpose of yentilation and to carry ed the impure gases from the traps or closets; and my invention consists in certain novel features of construction of that portion of the cast-iron soil-pipe connection which extendsthrough the roof, as will be hereinafter fully described, and the nature thereof indicated by claims.

It will be understood by those skilled in the artthat 'for the purpose of ventilation and to carry oil? the impure gases from traps and closets in a building castiron pipes are used, extending from said traps or closets n p to and through the roof of the building. In order to prevent any leakage in the roof at the point where the pipe extends through,a sheet of lead or other similar material is placed upon the root, through an opening in which the pipe extends, and said sheet of lead and the castiron pipe are united together in some manner, so as to form a tight joint and prevent any possible leakage at the point where the pipe extends through the roof.

In the use of cast-iron pipe in the manner above described considerable time and labor are required to make atight joint at the point where the pipe extends through the sheet of leady or equivalent material on the roof, by reason of the great difficulty of uniting the castiron pipe with the sheet-lead through which the pipe extends, so as to form a perfectly watertight joint,

The object of my invention is to constructthe section of the cast-iron pipe which extends through the roof in such a manner that the same may be quickly and readily connected with or united to the sheet of lead through which the pipe extends, and a perfectly Watertight joint be made by the simple application t of a little solder and a solder-iron. I accomplish this result by combining with and making a part of the cast-iron pipe, at the point Where it extends through the roof, a wrapping or coating of lead or analogous metal, encircling said pipe in the manner to be hereinafter described.

The drawing represents au elevation, partly in section, of my improved cast-iron soil-pipe connection extending through a sheet of lead.

In the drawing, lis a section of a cast-iron pipe connection of my improved construction. 2 is the castiron pipe proper, provided with a collar or flange, 3, upon its upper part, in this instance cast thereon and made a part thereof, and a collar, 8', upon its lower part, in this instance made adjustable thereon and securedin place by means of a set-screw, 4.

Between the collar 3 and the collar 3 at the point where the pipe extends through the sheet of lead 6, designed to be secured upon the roof of a building at the point where the soilpipe l extends through the roof, a sheet of lead, 5, or analogous metal is wrapped around the pipe 2 and iirmly secured thereon. Said lead 5 encircles the pipe 2 and extends between the collars 3 and 3', and its exterior diameter as it encircles the pipe corresponds with the exterior diameter of the collars 3 and 3".

I prefer to have the lower edge of the upper collar, 3, grooved out, as shown., so that the upper edge of the lead 5 may extend up within the same, for the purpose of preventing any water getting in between said collar and the upper edge ofthe lead coating 5, to run down between said 4coating and the pipe 2 and escape at the lower end thereof; but 'I do not limit myself to this construction. Neither do I limit myself to the employment of two collars, 3 and 3', for only one the upper one, 3', which is upon the outside of the roof-may be used, and with very good results. Either one or both of the collars 3 and 3 may be cast upon and made a part of the pipe 2, or be made separate therefrom and secu red thereto in any well-known manner, and maybe adjustahle thereon. The coating 5, of lead or analogous nietahwhich surrounds the cast-iron pipe 2 at the point where it passes through IOO the sheet of lead 6 may be ycast thereon or sccured thereto in any ordinary and well-known manner.l

The advantages `of my improved construction of the cast-iron soil-pipe connection which extends through the root1 of a building will be apparent to those skilled in the art. By combining with and making a part of the cast-iron pipe a coating of lead or analogous metal at the point where the pipe extends through the sheet of lead or analogous metal secured upon the roof of the building I am enabled to form a perfectly watertightjoint very quickly and cheaply around the pipe by simply uniting the two lead surfaces together by the application of a little solder and a solder-iron.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. As an improved article of manufacture, a castironpipe connection consisting of a cast-iron pipe, 2, provided with a collar, 3, thereon, and a wrapping of lead or analogous material, 5, encircling said pipe 2 and iitting at one edge against said collar, so as to form a tightjoint, for the purpose stated, substantially as shown and described.

2. As an improved article of manufacture, a cast-iron-pipe connection provided with two collars or flanges thereon, and a wrapping or coating of lead or analogous metal encircling said pipe and extending between the two (ich` lars, for the purpose stated, substantially as shown and described.

3. The combination, with a pipe of castiron provided with two collars or flanges thereon, of a wrapping or coating of lead or analogous metal encircling said pipe and eX- tending between said collars, for the purpose stated, substantially as shown and described.

4. The combination, with a sheet of lead or analogous metal having an opening therein, of a castiron pipe extending through said opening and provided with a wrapping or coating of lead or analogous metal encircling and forming a part of said pipe at the point where it ext-ends through said sheet of lead, for the purpose stated, substantially as shown and de scribed.

JOHN T. Fl IZPATRICK.

Vitnesses:

JOHN C. DEWEY,A CLARENCE M. DrcKINsoN. 

